How much power does the Rock Shaker 12 deliver?

Rockville rates it at 400W RMS and 800W peak through a built-in Class D amplifier matched to the 4-ohm woofer.

What connections does it have?

It has RCA line input and output plus high-level speaker input and output, so it works with receivers that lack a subwoofer pre-out.

Can I adjust the crossover and phase?

Yes. The rear panel has volume, crossover frequency and a 0-180 degree phase switch, along with the power switch.

What is the frequency response?

Rockville specifies 20 Hz to 200 Hz, which covers the low bass a home theater sub is expected to handle.

How big and heavy is it?

The cabinet measures 16.5 x 20.5 x 18 inches and weighs 32.2 lb, so plan for a sturdy spot on the floor.

Does it work on 220V power?

Yes. It accepts 110-240V and ships with an IEC cable, so it works in most countries.

Rockville Rock Shaker 12" Dark Wood Powered Home Theater Subwoofer

Best price now

$199.95at WalmartChecked Nov 10

Prices are checked against each store and labelled with when.

Visit Walmart

Rockville Rock Shaker 12" Dark Wood Powered Home Theater Subwoofer

Best price now

$199.95at WalmartChecked Nov 10

Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Last seen at $199.95 at Walmart on Nov 10.

Our take on the Rockville Rock Shaker 12" Dark Wood Powered Home Theater Subwoofer

The Rock Shaker 12 is a powered home theater subwoofer with a 12-inch paper-cone woofer driven by a built-in Class D amplifier rated 400W RMS and 800W peak. Its rear panel covers the basics well: volume, variable crossover, 0-180 degree phase and RCA plus high-level speaker connections. The MDF cabinet with vinyl wrap, internal damping and detachable foam grille is a solid package for the money. It suits budget home theater and studio setups that want deep bass without a separate amp, though it lacks the room-correction DSP and app control found on pricier subs.

Best forBudget home theater setupsStereo systems needing deeper bassSmall to mid-size roomsBuyers who want speaker-level and line-level inputs

Pros

12-inch woofer with 400W RMS Class D amp
Crossover, phase and volume controls on the rear panel
RCA and high-level speaker inputs and outputs
MDF cabinet with internal damping and detachable grille
Accepts 110-240V power

Cons

No room-correction DSP or app control
Paper cone with foam surround needs careful handling
Heavy at 32.2 lb for its size
No auto-on or remote control

Rockville Rock Shaker 12" Dark Wood Powered Home Theater Subwoofer prices at every store

WalmartNew
In stockSold by AudiosavingsReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$199.95Free shippingChecked Nov 10
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About the Rockville Rock Shaker 12" Dark Wood Powered Home Theater Subwoofer

The Rockville Rock Shaker 12" is a powered home theater subwoofer in a Dark Wood finish. It is rated at 800W peak and 400W RMS. A built-in Class D amplifier is matched to the 4-ohm woofer to reinforce low frequencies in home theater and studio systems.

The enclosure is MDF with a vinyl covering, internal fire-resistant poly-cotton damping, and a detachable foam grille. The woofer has a paper cone, a foam surround, a Y30-grade magnet, and a 2" 4-layer voice coil. The cabinet volume is matched to the woofer for controlled low-frequency output.

The rear panel has RCA line input and output and high-level speaker input and output. Controls on the rear panel are volume, crossover frequency, 0°-180° phase, and power. The unit accepts 110-240V power.

Woofer size: 12"
Finish: Dark Wood
Power: 800W peak, 400W RMS
Amplifier: Built-in Class D
Impedance: 4 ohm
Frequency response: 20 Hz - 200 Hz
Enclosure: MDF with vinyl covering and internal fire-resistant poly-cotton damping
Grille: Detachable foam
Woofer: Paper cone, foam surround, Y30-grade magnet, 2" 4-layer voice coil
Inputs: RCA line input, high-level speaker input
Outputs: RCA line output, high-level speaker output
Controls: Volume, crossover frequency, 0°-180° phase, power
Voltage: 110-240V
In the box: IEC power cable
Dimensions: 16.5" x 20.5" x 18"
Weight: 32.2 lb

Specifications

color: BrownSource
size: 12"Source

Questions and answers

How much power does the Rock Shaker 12 deliver?: Rockville rates it at 400W RMS and 800W peak through a built-in Class D amplifier matched to the 4-ohm woofer.
What connections does it have?: It has RCA line input and output plus high-level speaker input and output, so it works with receivers that lack a subwoofer pre-out.
Can I adjust the crossover and phase?: Yes. The rear panel has volume, crossover frequency and a 0-180 degree phase switch, along with the power switch.
What is the frequency response?: Rockville specifies 20 Hz to 200 Hz, which covers the low bass a home theater sub is expected to handle.
How big and heavy is it?: The cabinet measures 16.5 x 20.5 x 18 inches and weighs 32.2 lb, so plan for a sturdy spot on the floor.
Does it work on 220V power?: Yes. It accepts 110-240V and ships with an IEC cable, so it works in most countries.
Where is the Rockville Rock Shaker 12" Dark Wood Powered Home Theater Subwoofer cheapest?: At Walmart, for $199.95, as of our latest check.